WARPP LGK-40 Instruction Manual - Introduction

Introduction  

The cutting machine applies the advanced technology of inversion. Its 

principle is making the 50/60Hz line frequency inverted to high frequency 

(more than 100 kHz) with the V-MOSFET high power binistor, and then 

stepping down and rectifying to attain high power DC source through the 

pulse width modulation (PWM) technology. Thus the weight and size of the 

transformer is greatly decreased and the efficiency is improved up 30%. The 

principle of high frequency oscillation (HFO) is applied in the arc striking 

system and makes it easy to arcing. Furthermore, the gas pre-flow and 

post-flow function is available. It is stable, reliable, portable, energy saving, 

noiseless, fast cutting speed, smooth scarfing and free of burnishing. 

The cutting machine can be widely used. It can cut stainless steel, low carbon 

steel, copper and other non-ferrous metals. The conversion efficiency of the 

whole machine is over 85%.